Operating the DSU
Lamp Test
The Lamp Test is a local test of the status indicators (LEDs) and liquid crystal display (LCD) on the DSU's control panel (both models). Any indicator that does not flash is not functional.
Note that if all LEDs are functioning, all the indicators on the Model 3615 DCP are flashing steadily. In a COMSPHERE 3000 Series Carrier, the indicators on the SDCP remain ON. The LCD on the DCP or SDCP alternately flashes solid blocks, moving from position to position on the display until the test is aborted.
Pressing any key except the 
key will stop the LCD portion of the Lamp Test and return you to the DSU Test menu so you can abort the test. Once aborted, the LCD and LEDs stop flashing.
Configuration Branch
The Configuration (Confg) branch allows you to configure or customize the DSU and its DBM to fit your site's requirements, to enter and change telephone numbers, and to specify the mode for viewing or editing configuration options.
Selecting an Application Configuration
The DSU is shipped from the factory with three common applications already configured. All you have to do is select the appropriate application and load the preset configuration into the unit. These configurations include:
•Synchronous Backup for a Control DualFlow DSU (SyBC) ± Sends user data over the DDS connection via the V.35 port, and configures the DBM for synchronous
•Synchronous Backup for a Tributary DualFlow DSU (SyBT) ± Sends user data over the DDS connection via the V.35 port, and configures the DBM for synchronous
•Dial Diagnostics (DiDg) ± Sends user data over the DDS connection via the V.35 port, and configures the DBM for asynchronous
Select the appropriate configuration based upon how the unit will be used within your network. All configurations support simultaneous DDS and DBM connections. The difference is in how the DBM connection is used.
Refer to the Application Configurations in Appendix E for examples using these three configurations. Refer to the DSU's menu in Appendix A as you follow these steps.
.Procedure
1.Select Confg (Configuration branch).
2.Press the F1 key to select Opts (Configuration Options subbranch).
The Load from screen appears.
3.Press the 
or 
key to scroll the desired configuration into view.
NOTE
By referencing the menu in Appendix A, you will see that
pressing the 
key is often more efficient.
4.Make your selection: SyBC, SyBT, or DiDg, and press the function key (F1, F2, or F3) directly below the desired configuration.
The Edit/Save screen appears.
December 1996 |
